CVE-2026-57211

MEDIUM

RabbitMQ: UNC SSRF affecting the management UI on Windows

Title source: cna
STIX 2.1

Description

RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.

Scores

CVSS v3 6.5
EPSS 0.0028
EPSS Percentile 19.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-36 CWE-918
Status published
Products (3)
broadcom/rabbitmq_server 4.1.0 - 4.2.6
rabbitmq/rabbitmq-server >= 4.1.0, < 4.1.11
rabbitmq/rabbitmq-server >= 4.2.0, < 4.2.6
Published Jul 10, 2026
Tracked Since Jul 11, 2026